Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

IMA2009-025

Formula:
Na
 
3
K
 
3
Fe
3+
2
Si
 
8
O
 
20
(OH)
 
4
·4H
 
2
O
System:Triclinic


Fe3+-analogue of ershovite.

Classification of IMA2009-025

IMA status:Approved 2009
Nickel-Strunz 10th (pending) edition ID:9.DF.15

9 : SILICATES (Germanates)
D : Inosilicates
F : Inosilicates with 2-periodic multiple chains
Dana 8th edition ID:66.6.3.2

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
6 : Double-Width Unbranched Chains, W=2 with P=2 non-amphibole configuration
mindat.org URL:http://www.mindat.org/min-39560.html
Please feel free to link to this page.

Type Occurrence of IMA2009-025

Type Locality:Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Crystallography of IMA2009-025

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Cell Parameters:a = 10.1978(5) Å, b = 12.0155(6) Å, c = 5.2263(3) Å
α = 103.439(1)°, β = 96.020(1)°, γ = 91.683(1)°
Ratio:a:b:c = 0.849 : 1 : 0.435
Unit Cell Volume:V 618.46 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
11.778 (100)
4.390 (70)
4.109 (60)
3.390 (50)
3.012 (70)
2.730 (60)

Chemical Properties of IMA2009-025

Formula:
Na
 
3
K
 
3
Fe
3+
2
Si
 
8
O
 
20
(OH)
 
4
·4H
 
2
O
Essential elements:Fe, H, K, Na, O, Si
All elements listed in formula:Fe, H, K, Na, O, Si

Relationship of IMA2009-025 to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DF.05Chesterite
(Mg,Fe)
 
17
Si
 
20
O
 
54
(OH)
 
6
9.DF.05Clinojimthompsonite
(Mg,Fe)
 
5
Si
 
6
O
 
16
(OH)
 
2
9.DF.05Jimthompsonite
(Mg,Fe)
 
5
Si
 
6
O
 
16
(OH)
 
2
9.DF.15Ershovite
Na
 
4
K
 
3
(Fe,Mn,Ti)
 
2
Si
 
8
O
 
22
(OH)
 
4
·4H
 
2
O
9.DF.20Tvedalite
(Ca,Mn)
 
4
Be
 
3
Si
 
6
O
 
17
(OH)
 
4
·3H
 
2
O
9.DF.25Bavenite
Ca
 
4
Be
 
2
Al
 
2
Si
 
9
O
 
26
(OH)
 
2
9.DF.30Bigcreekite
BaSi
 
2
O
 
5
·4H
 
2
O

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for IMA2009-025

Reference List:IMA Approvals - July 2009

Internet Links for IMA2009-025

Search Engines:
  • Look for IMA2009-025 on Google
  • Look for IMA2009-025 images on Google
    • External Links:
  • Look for IMA2009-025 on Webmineral
  • Look for IMA2009-025 on Athena Mineralogy
  • Look for IMA2009-025 on Wikipedia
  • Look for IMA2009-025 on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for IMA2009-025 in the Natural History Museum (London) online catalogue
    • Mineral Dealers:
  • Rare and Unusual minerals at Mineralogical Research Company
  • The Arkenstone - Fine Minerals
  • Buy fine minerals and gemstones from Pala International
  • Find IMA2009-025 on www.crystalclassics.co.uk
  • Buy Minerals and Crystals from Crystalarium.com
  • Fine Minerals from Dan Weinrich Minerals
  • Fabre Minerals - search for IMA2009-025 specimens
  • Buy RARE Minerals from Rocks of Africa
  • Edwards Minerals - Fine Specimens
  • Wendel Minerals - Auktion & Shop
  • Buy Fine Minerals from mineralsweb.com
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for IMA2009-025

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		IMA Approvals - July 2009
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 18th Nov 2009 17:36:46